20123220201113 has 8 divisors (see below), whose sum is σ = 20509114898376. Its totient is φ = 19737555552000.

The previous prime is 20123220201107. The next prime is 20123220201131. The reversal of 20123220201113 is 31110202232102.

It can be written as a sum of positive squares in 4 ways, for example, as 1171929658249 + 18951290542864 = 1082557^2 + 4353308^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 20123220201113 - 2²² = 20123216006809 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20123220201313) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 57335408 + ... + 57685313.

It is an arithmetic number, because the mean of its divisors is an integer number (2563639362297).

Almost surely, 2^{20123220201113} is an apocalyptic number.

It is an amenable number.

20123220201113 is a deficient number, since it is larger than the sum of its proper divisors (385894697263).

20123220201113 is a wasteful number, since it uses less digits than its factorization.

20123220201113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 115024075.

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 20123220201113 its reverse (31110202232102), we get a palindrome (51233422433215).

The spelling of 20123220201113 in words is "twenty trillion, one hundred twenty-three billion, two hundred twenty million, two hundred one thousand, one hundred thirteen".